#include "mathconstants.h"
-// Set class variable defaults
-//Vector Painter::origin(-10.0, -10.0);
-//double Painter::zoom = 1.0;
-//Vector Painter::screenSize(200.0, 200.0);
-
-
Painter::Painter(QPainter * p/*= NULL*/): painter(p)
{
}
Vector Painter::CartesianToQtCoords(Vector v)
{
- // Convert regular Cartesian coordinates to the inverted Y-axis Qt coordinates
- // at the current origin and zoom level.
+ // Convert regular Cartesian coordinates to the inverted Y-axis Qt
+ // coordinates at the current origin and zoom level.
return Vector((v.x - Global::origin.x) * Global::zoom, Global::screenSize.y - ((v.y - Global::origin.y) * Global::zoom));
}
// Need to figure out if dimensions are always rendered at one size
// regardless of zoom, or if they have a definite size, and are thus
// zoomable.
- float yOffset = -12.0 * Global::zoom * size;
+// float yOffset = -12.0 * Global::zoom * size;
+ float yOffset = -8.0 * Global::zoom * size;
// Fix text so it isn't upside down...
- if ((angle > PI * 0.5) && (angle < PI * 1.5))
+ if ((angle > QTR_TAU) && (angle < THREE_QTR_TAU))
{
- angle += PI;
- yOffset = 12.0 * Global::zoom * size;
+ angle += HALF_TAU;
+// yOffset = 12.0 * Global::zoom * size;
+ yOffset = 8.0 * Global::zoom * size;
}
textBox.translate(0, yOffset);
}
+//
+// Return the non-rotated rectangle containing the extents of the text in
+// Cartesian coordiates (starting from <0, 0>, the lower left hand side)
+//
+Rect Painter::MeasureTextObject(QString text, double size)
+{
+ if (!painter)
+ return Rect();
+
+ painter->setFont(QFont("Arial", Global::zoom * size));
+ int textWidth = QFontMetrics(painter->font()).width(text);
+ int textHeight = QFontMetrics(painter->font()).height();
+ Point measured((double)textWidth / Global::zoom, (double)textHeight / Global::zoom);// = QtToCartesianCoords(Point(textWidth, textHeight));
+//printf("QFontMetrics w/h=%i/%i, measured=%lf/%lf\n", textWidth, textHeight, measured.x, measured.y);
+
+ return Rect(Point(0, 0), measured);
+}
+
+
void Painter::DrawArc(Vector center, double radius, double startAngle, double span)
{
+ if (!painter)
+ return;
+
center = CartesianToQtCoords(center);
// Need to multiply scalar quantities by the zoom factor as well...
radius *= Global::zoom;
void Painter::DrawEllipse(Vector center, double axis1, double axis2)
{
+ if (!painter)
+ return;
+
// Need to multiply scalar quantities by the zoom factor as well...
center = CartesianToQtCoords(center);
painter->drawEllipse(QPointF(center.x, center.y), axis1 * Global::zoom, axis2 * Global::zoom);
// we don't want our object handle size to depend on the zoom level!
void Painter::DrawHandle(Vector center)
{
+ if (!painter)
+ return;
+
center = CartesianToQtCoords(center);
+ painter->setPen(QPen(Qt::red, 2.0, Qt::DotLine));
painter->setBrush(Qt::NoBrush);
painter->drawEllipse(QPointF(center.x, center.y), 4.0, 4.0);
}
+// This function is for drawing object handles without regard for zoom level;
+// we don't want our object handle size to depend on the zoom level!
+void Painter::DrawSmallHandle(Vector center)
+{
+ if (!painter)
+ return;
+
+ center = CartesianToQtCoords(center);
+ painter->setPen(QPen(Qt::red, 2.0, Qt::DotLine));
+ painter->setBrush(Qt::NoBrush);
+ painter->drawEllipse(QPointF(center.x, center.y), 2.0, 2.0);
+}
+
+
+// This function is for drawing feedback points without regard for zoom level;
+// we don't want our feedback point size to depend on the zoom level!
+void Painter::DrawCross(Vector point)
+{
+ if (!painter)
+ return;
+
+ point = CartesianToQtCoords(point);
+ painter->setPen(QPen(Qt::red, 2.0, Qt::SolidLine));
+ painter->drawLine(point.x - 8.0, point.y, point.x + 8.0, point.y);
+ painter->drawLine(point.x, point.y - 8.0, point.x, point.y + 8.0);
+}
+
+
+// This function is for drawing feedback points without regard for zoom level;
+// we don't want our feedback point size to depend on the zoom level!
+void Painter::DrawRectCorners(Rect rect)
+{
+ if (!painter)
+ return;
+
+ Vector v1 = CartesianToQtCoords(Vector(rect.l, rect.t));
+ Vector v2 = CartesianToQtCoords(Vector(rect.r, rect.b));
+ v1 += Vector(-8.0, -8.0);
+ v2 += Vector(+8.0, +8.0);
+ painter->setPen(QPen(Qt::red, 2.0, Qt::DashLine));
+ painter->drawLine(v1.x, v1.y, v1.x + 24, v1.y);
+ painter->drawLine(v1.x, v1.y, v1.x, v1.y + 24);
+ painter->drawLine(v2.x, v1.y, v2.x - 24, v1.y);
+ painter->drawLine(v2.x, v1.y, v2.x, v1.y + 24);
+ painter->drawLine(v2.x, v2.y, v2.x - 24, v2.y);
+ painter->drawLine(v2.x, v2.y, v2.x, v2.y - 24);
+ painter->drawLine(v1.x, v2.y, v1.x + 24, v2.y);
+ painter->drawLine(v1.x, v2.y, v1.x, v2.y - 24);
+
+}
+
+
// This function is for drawing object handles without regard for zoom level;
// we don't want our object handle size to depend on the zoom level!
void Painter::DrawArrowHandle(Vector center, double angle)
{
+ if (!painter)
+ return;
+
center = CartesianToQtCoords(center);
QPolygonF arrow;
// Since we're drawing directly on the screen, the Y is inverted. So we use
// the mirror of the angle.
- double orthoAngle = -angle + (PI / 2.0);
+ double orthoAngle = -angle + QTR_TAU;
Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle));
Vector unit = Vector(cos(-angle), sin(-angle));
// we don't want our object handle size to depend on the zoom level!
void Painter::DrawArrowToLineHandle(Vector center, double angle)
{
+ if (!painter)
+ return;
+
DrawArrowHandle(center, angle);
center = CartesianToQtCoords(center);
// Since we're drawing directly on the screen, the Y is inverted. So we use
// the mirror of the angle.
- double orthoAngle = -angle + (PI / 2.0);
+ double orthoAngle = -angle + QTR_TAU;
Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle));
Vector unit = Vector(cos(-angle), sin(-angle));
// We draw the arrowhead aligned along the line from tail to head
double angle = Vector(head - tail).Angle();
- double orthoAngle = angle + (PI / 2.0);
+ double orthoAngle = angle + QTR_TAU;
Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle));
Vector unit = Vector(head - tail).Unit();
void Painter::DrawInformativeText(QString text)
{
+ if (!painter)
+ return;
+
painter->setFont(*Global::font);
QRectF bounds = painter->boundingRect(QRectF(), Qt::AlignVCenter, text);
bounds.moveTo(17.0, 17.0);
QPen pen = QPen(QColor(0x00, 0xFF, 0x00), 1.0, Qt::SolidLine);
painter->setPen(pen);
- painter->setBrush(QBrush(QColor(0x40, 0xFF, 0x40, 0x9F)));
+ painter->setBrush(QBrush(QColor(0x40, 0xFF, 0x40, 0xD7)));
painter->drawRoundedRect(textRect, 7.0, 7.0);
pen = QPen(QColor(0x00, 0x5F, 0xDF));